CN109727801A - The design method of power switch operating mechanism connecting lever - Google Patents
The design method of power switch operating mechanism connecting lever Download PDFInfo
- Publication number
- CN109727801A CN109727801A CN201811607644.1A CN201811607644A CN109727801A CN 109727801 A CN109727801 A CN 109727801A CN 201811607644 A CN201811607644 A CN 201811607644A CN 109727801 A CN109727801 A CN 109727801A
- Authority
- CN
- China
- Prior art keywords
- connecting lever
- equation
- power switch
- operating mechanism
- discreet value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention discloses a kind of design methods of power switch operating mechanism connecting lever, it is the following steps are included: (1) determines divide-shut brake total kilometres L, the moving corner of mechanism, separating brake radius R1 and combined floodgate radius R2, (2) according to the moving corner of mechanism and dependent variable stroke discreet value, describe an initial motion track in conjunction with scatterplot, (3) it is solved by newton-Simpson's method, correction amount is solved by discreet value, continuous iteration, until the two functional relation meets switching requirements i.e. optimal case, (4) form connecting lever appearance profile.Its purpose is to provide a kind of design method of power switch operating mechanism connecting lever, it can realize process of optimization by continuous correction result on the basis of principle of dynamics, it does not need traditional trace-point method or theoretical calculate repeatedly derives and be opened production, cost is greatly saved, and has reached efficient, time saving and accurate effect.
Description
Technical field
The present invention relates to electrical equipments, more particularly to a kind of design method of power switch operating mechanism connecting lever.
Background technique
For crank arm structure in existing switchgear operating mechanism in design, the method substantially used is according to switch
On/off switch total kilometres and corner go theoretical calculation to derive motion profile, slot on the basis of motion profile, and it is outer to extend design
See profile.The key point of connecting lever design is to describe motion profile, in existing technical method, often using trace-point method or repeatedly
It derives and calculates, but the problem is that calculation amount and error are larger, cause motion profile not accurate enough, influence overall structure and set
Meter, and need to be opened production repeatedly and test and can just obtain preferable effect.
Summary of the invention
It, can be with the technical problem to be solved in the present invention is to provide a kind of design method of power switch operating mechanism connecting lever
Continuous correction result realizes process of optimization on the basis of principle of dynamics, does not need traditional trace-point method or theory and counts repeatedly
It calculates and derives track contour line and die sinking production appearance profile, cost is greatly saved, and reached efficient, time saving and accurate
Effect.
The design method of power switch operating mechanism connecting lever of the present invention, comprising the following steps:
(1) the divide-shut brake total kilometres L that switch is determined by the characteristic of user demand and vacuum interrupter, then according to switch
Internal structure, mechanical feature and assembly relation determine the moving corner of mechanism, finally determine connecting lever separating brake using geometrical relationship
Radius R1With combined floodgate radius R2, equation is as follows:
L=R2-R1
(2) moving corner and dependent variable stroke discreet value that mechanism can be obtained according to step (1) describe one in conjunction with scatterplot
Then multiple groups corner and stroke are established through derivation and vector transformation by vector ring and vector chain equation in initial motion track
Functional relation, equation are as follows:
X=R*cos (α)+(l0+l)*sin(α)
Y=(l0+l)*cos(α)-R*sin(α)
Wherein,
(X, Y): the coordinate at any point on connecting lever contour line；
R: the eccentricity of driven member above connecting lever；
α: connecting lever corner；
L: driven member shift value corresponding to the angle that connecting lever turns over；
l0:R is the base radius of connecting lever in formula；
(3) it is solved by newton-Simpson's method, correction amount, continuous iteration, until the two letter is solved by discreet value
Number relationship meets
In formulaFor the coordinate of the point on connecting lever contour line,
WhenAs optimal case when meeting above-mentioned functional relation.At this point,Meet switching requirements simultaneously；
(4) external expansion certain distance forms slot and outer to the motion profile line found out according to step (1)~(3) respectively inwards
Wall, according to basic circle and design feature design output shaft hole and boss size and location, connecting each position line segment, can to form one complete
Whole connecting lever appearance profile.
The design method of power switch operating mechanism connecting lever of the present invention, wherein being repaired in the step (3) by discreet value solution
The specific steps of positive quantity are as follows:
By variable xi, yiIt is expressed as the discreet value of solution of equation and the difference of a description discreet value and solution of equation in step (3)
The sum of small modifying factor, i.e.,
Have with Taylor series
Higher order term is omitted, linear term is only used, above-mentioned expression formula can use expression matrix are as follows:
Aforesaid equation gives the calculation method of the difference between unknown quantity estimated value and the accurate solution of equation, therefore can ask
Difference DELTA x outi, Δ yi:
The design method difference from prior art of power switch operating mechanism connecting lever of the present invention is use of the present invention
This new method of three-dimensional structure dynamics removes design connecting lever, can on the basis of principle of dynamics the realization of continuous correction result it is excellent
Change design process, does not need traditional trace-point method or theoretical calculate repeatedly derives and be opened production, cost is greatly saved, and
Efficient, time saving and accurate effect is reached.
The present invention will be further explained below with reference to the attached drawings.
Detailed description of the invention
Fig. 1 is the flow chart of the design method of power switch operating mechanism connecting lever of the present invention；
Fig. 2 is the structural schematic diagram of connecting lever in the present invention.
Specific embodiment
As shown in Figure 1, simultaneously as shown in connection with fig. 2, the design method of power switch operating mechanism connecting lever of the present invention includes following
Step:
(1) the divide-shut brake total kilometres L that switch is determined by the characteristic of user demand and vacuum interrupter, then according to switch
Internal structure, mechanical feature and assembly relation determine the moving corner of mechanism, finally determine connecting lever separating brake using geometrical relationship
Radius R1With combined floodgate radius R2, equation is as follows:
L=R2-R1
(2) moving corner and dependent variable stroke discreet value that mechanism can be obtained according to step (1) describe one in conjunction with scatterplot
Then multiple groups corner and stroke are established through derivation and vector transformation by vector ring and vector chain equation in initial motion track
Functional relation, equation are as follows:
X=R*cos (α)+(l0+l)*sin(α)
Y=(l0+l)*cos(α)-R*sin(α)
Wherein,
(X, Y): the coordinate at any point on connecting lever contour line；
R: the eccentricity of driven member above connecting lever；
α: connecting lever corner；
L: driven member shift value corresponding to the angle that connecting lever turns over；
l0:R is the base radius of connecting lever in formula；
(3) it is solved by newton-Simpson's method, correction amount, continuous iteration, until the two letter is solved by discreet value
Number relationship meets
In formulaFor the coordinate of the point on connecting lever contour line,
WhenAs optimal case when meeting above-mentioned functional relation；
(4) the motion profile line found out according to step (1)~(3) respectively inwards external expansion certain distance (according to switch from
Body assembling characteristics determine) slot 1 and outer wall 2 are formed, according to basic circle and design feature design output shaft hole 3 and 4 size of boss and position
It sets, a complete connecting lever appearance profile can be formed by connecting each position line segment.
The design method of power switch operating mechanism connecting lever of the present invention, wherein being repaired in the step (3) by discreet value solution
The specific steps of positive quantity are as follows:
By variable xi, yiIt is expressed as the discreet value of solution of equation and the difference of a description discreet value and solution of equation in step (3)
The sum of small modifying factor, i.e.,
Have with Taylor series
Higher order term is omitted, linear term is only used, above-mentioned expression formula can use expression matrix are as follows:
Aforesaid equation gives the calculation method of the difference between unknown quantity estimated value and the accurate solution of equation, therefore can ask
Difference DELTA x outi, Δ yi:
The present invention removes design connecting lever especially motion profile using this new method of three-dimensional structure dynamics, can be in power
It learns continuous correction result on basis and realizes process of optimization, do not need traditional trace-point method or theoretical calculate repeatedly pushes away
It leads, be opened production repeatedly and test, cost is greatly saved, and reached efficient, time saving and accurate effect.
The present invention can largely reduce work calculation amount, improve efficiency.It, can by mechanism dynamic analog result
So that optimization process obtains good effect, does not need to make sample repeatedly, cost is greatly saved.
Embodiment described above only describe the preferred embodiments of the invention, not to model of the invention
It encloses and is defined, without departing from the spirit of the design of the present invention, those of ordinary skill in the art are to technical side of the invention
The various changes and improvements that case is made should all be fallen into the protection scope that claims of the present invention determines.
Claims (2)
1. a kind of design method of power switch operating mechanism connecting lever, which comprises the following steps:
(1) the divide-shut brake total kilometres L that switch is determined by the characteristic of user demand and vacuum interrupter, then according in switch
Cage structure, mechanical feature and assembly relation determine the moving corner of mechanism, finally determine connecting lever separating brake radius using geometrical relationship
R1With combined floodgate radius R2, equation is as follows:
L=R2-R1
(2) moving corner and dependent variable stroke discreet value that mechanism can be obtained according to step (1), in conjunction at the beginning of scatterplot describes one
Then beginning motion profile establishes the function of multiple groups corner and stroke by vector ring and vector chain equation through derivation and vector transformation
Relationship, equation are as follows:
X=R*cos (α)+(l0+l)*sin(α)
Y=(l0+l)*cos(α)-R*sin(α)
Wherein,
(X, Y): the coordinate at any point on connecting lever contour line；
R: the eccentricity of driven member above connecting lever；
α: connecting lever corner；
L: driven member shift value corresponding to the angle that connecting lever turns over；
l0:R is the base radius of connecting lever in formula；
(3) it is solved by newton-Simpson's method, correction amount, continuous iteration is solved by discreet value, until the two function closes
System meets
In formulaFor the coordinate of the point on connecting lever contour line,
WhenAs optimal case when meeting above-mentioned functional relation；
(4) external expansion certain distance forms slot and outer wall, root to the motion profile line found out according to step (1)~(3) respectively inwards
According to basic circle and design feature design output shaft hole and boss size and location, connects each position line segment and can form one and completely turn
Arm appearance profile.
2. the design method of power switch operating mechanism connecting lever according to claim 1, it is characterised in that: the step
(3) in, the specific steps of correction amount are solved by discreet value are as follows:
By variable xi, yiIt is expressed as the small of the difference that the discreet value of solution of equation in step (3) describes discreet value and solution of equation with one
The sum of modifying factor, i.e.,
Have with Taylor series
Higher order term is omitted, linear term is only used, above-mentioned expression formula can use expression matrix are as follows:
Aforesaid equation gives the calculation method of the difference between unknown quantity estimated value and the accurate solution of equation, therefore can find out difference
It is worth Δ xi, Δ yi:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811607644.1A CN109727801B (en) | 2018-12-27 | 2018-12-27 | Design method of crank arm of power switch operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811607644.1A CN109727801B (en) | 2018-12-27 | 2018-12-27 | Design method of crank arm of power switch operating mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109727801A true CN109727801A (en) | 2019-05-07 |
| CN109727801B CN109727801B (en) | 2020-08-04 |
Family
ID=66296545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811607644.1A Active CN109727801B (en) | 2018-12-27 | 2018-12-27 | Design method of crank arm of power switch operating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109727801B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101144555B1 (en) * | 2010-12-03 | 2012-05-11 | 기아자동차주식회사 | Detent lever profile optimizing design method |
| CN104747632A (en) * | 2013-12-30 | 2015-07-01 | 常州南车铁马科技实业有限公司 | Design method for cam mechanism used for foundation braking device |
| CN106409599A (en) * | 2016-10-08 | 2017-02-15 | 厦门理工学院 | Cam optimal design method matched with vacuum circuit breaker spring operating mechanism |
| CN106844875A (en) * | 2016-12-28 | 2017-06-13 | 湖南大学 | A kind of High speed cam Optimization Design based on Fourier space |
| CN107273644A (en) * | 2017-07-19 | 2017-10-20 | 江苏大学 | A kind of stable Method of Designing Cam of high speed |
| CN108223035A (en) * | 2017-12-30 | 2018-06-29 | 潍柴动力股份有限公司 | A kind of design of cam contour line method |
| CN108256175A (en) * | 2017-12-28 | 2018-07-06 | 江苏牛牌纺织机械有限公司 | A kind of design method of cam profile |
-
2018
- 2018-12-27 CN CN201811607644.1A patent/CN109727801B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101144555B1 (en) * | 2010-12-03 | 2012-05-11 | 기아자동차주식회사 | Detent lever profile optimizing design method |
| CN104747632A (en) * | 2013-12-30 | 2015-07-01 | 常州南车铁马科技实业有限公司 | Design method for cam mechanism used for foundation braking device |
| CN106409599A (en) * | 2016-10-08 | 2017-02-15 | 厦门理工学院 | Cam optimal design method matched with vacuum circuit breaker spring operating mechanism |
| CN106844875A (en) * | 2016-12-28 | 2017-06-13 | 湖南大学 | A kind of High speed cam Optimization Design based on Fourier space |
| CN107273644A (en) * | 2017-07-19 | 2017-10-20 | 江苏大学 | A kind of stable Method of Designing Cam of high speed |
| CN108256175A (en) * | 2017-12-28 | 2018-07-06 | 江苏牛牌纺织机械有限公司 | A kind of design method of cam profile |
| CN108223035A (en) * | 2017-12-30 | 2018-06-29 | 潍柴动力股份有限公司 | A kind of design of cam contour line method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109727801B (en) | 2020-08-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202176548U (en) | Intermediate blade of air compressor used for high power gas turbine | |
| CN201844094U (en) | Double-mode electrical digital valve | |
| CN202017792U (en) | Pneumatic reversal valve for automobile gearbox | |
| CN206943121U (en) | A kind of integral type automatic reciprocating air cylinder device | |
| CN110285802A (en) | Quick Extended random tree path smoothing method | |
| CN108897318A (en) | Hydraulic quadruped robot power mechanism load matched method | |
| CN107339278A (en) | A kind of automatic reciprocating hydraulic cylinder of stroke controllable type | |
| CN107178536A (en) | A kind of integral type automatic reciprocating air cylinder device | |
| CN106296748A (en) | A kind of subject image weight illumination method based on Block-matching deformation and color transfer | |
| CN102170516B (en) | Color space transition method based on fuzzy logic and neural network | |
| CN109727801A (en) | The design method of power switch operating mechanism connecting lever | |
| CN102062092A (en) | Single-stage medium-pressure single-screw air compressor | |
| CN105278462A (en) | Acceleration-deceleration interpolation algorithm for robot control system trajectory | |
| CN207111991U (en) | A kind of automatic reciprocating fluid pressure valve device of compact type | |
| CN207111584U (en) | A kind of automatic reciprocating hydraulic cylinder of stroke controllable type | |
| CN102072079B (en) | Speed regulation type hydraulic motor based on digital distribution | |
| CN204961979U (en) | Pneumatic film formula angle stroke actuating mechanism | |
| CN108170903A (en) | A kind of hyperbolic surface parts springback compensation method based on curvature mapping | |
| CN2462075Y (en) | Hydraulic lifter able to automaltic regulate air valve of engine | |
| CN210068623U (en) | Long-stroke hydraulic cylinder | |
| CN201377624Y (en) | Electromagnetic valve | |
| CN211174856U (en) | Two-stage sectional type hydraulic oil cylinder | |
| CN111691925B (en) | Air engine | |
| CN203477570U (en) | Rotary single valve element multifunctional pneumatic operated directional valve | |
| CN204113451U (en) | MT rotary engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |